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pogonyaev
3 years ago
12

A population of beetles are growing according to a linear growth model. The initial population (week 0) is P0=9, and the populat

ion after 7 weeks is P7=37.
Find an explicit formula for the beetle population after n weeks.


After how many weeks will the beetle population reach 93?
Mathematics
1 answer:
Marat540 [252]3 years ago
5 0

Answer:

y = 4x + 9

week 21

Step-by-step explanation:

first I did 37-9 and got 28 I divide that by 7 ( seven weeks) and got 4 so I know the slope is 4.

so to find how many weeks till 93 I did; 93 = 4x + 9. We have to get x by its self so I minus 9 by both sides and got 84 = 4x. So now we divid both sides by 4 to get x by its self and we end up with 21 = x

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Answer:

x= 44°

Step-by-step explanation:

Since a triangle is 180° in total, if you take 46° and 90° and subtract it from 180°, you will get 44° for x.

8 0
3 years ago
If a equals 4b - 15 what is b
nlexa [21]

Answer:

b = a + 3.75

Step-by-step explanation:

a = 4b - 15

You are solving for b. Isolate the b. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, add 15 to both sides

a (+15) = 4b - 15 (+15)

a + 15 = 4b

Next, divide 4 from both sides. Remember to divide from all terms.

(4a + 15)/4 = (4b)/4

b = (4a)/4 + (15)/4

b = a + 15/4

b = a + 3.75 is your answer

~

7 0
3 years ago
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3 years ago
Given the following exponential function, identify whether the change represents
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3%

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The formula for exponential decay is y=a(1-r)x.

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kirza4 [7]

Answer:

A

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hope this helps :)

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